Brinkman Pitmaster Deluxe (Are they any good)

Found a Brinkman Pitmaster Deluxe in my local news paper for sale. Seller states that it is 6 years old and was purchased new for $900.00 Is this accurate. What guage steel is this pit constructed from and do they hold heat well. I know the new ones are paper thin. Is it worh $150.00. Any input greatly appreciated.